
package lab01;


import java.util.Scanner;

/**
 * Created by 123 on 2017/9/29.
 */
public class Text06 {
    public static void main(String[] args) {

        Scanner sc=new Scanner(System.in);
        int grades=sc.nextInt();
        if (grades==1){
            System.out.println("不及格");
        }else if (grades==2){
            System.out.println("及格");
        }else if (grades==3){
            System.out.println("中等");
        }else if (grades==4){
            System.out.println("良好");
        }else if (grades==5){
            System.out.println("优秀");
        }else{
            System.out.println("没有这个选项");
        }

    }
}
